Lights Out
Toggle lights on a grid to turn them all off — but every light you press also flips its neighbors.
Lights Out
Moves
0
Par
0
Lights Out!
Under par! Perfect!
New Best!
Best: moves
Levels
Features
- Classic Lights Out puzzle gameplay on grids from 3×3 to 7×7
- 26 pre-designed solvable levels with progressive difficulty
- Random puzzle generator for unlimited replay (guaranteed solvable)
- Move counter with par scoring for each level
- Undo button to step back one move
- Reset button to restart the current puzzle
- Best score tracking per level saved to your browser
- Level list with completion status and size filter
- Win celebration overlay with score summary
- Glowing light-on and dark light-off cell animations
- Touch-friendly and responsive design
How to Use
- Click or tap a cell to toggle it and its four adjacent neighbors on or off.
- Your goal is to turn all lights off (all cells dark).
- Try to solve each level in as few moves as possible — match or beat the par for a perfect score.
- Use Undo to take back one move, or Reset to start the level over.
- Press Random Puzzle to generate a fresh solvable puzzle at any time.
- Filter levels by grid size using the dropdown above the level list.
- Your best scores are saved automatically in your browser.